(i) What are disinfectants ? Given an example.
(ii) Given two example of macro-molecules that are chosen as drug targets.
(iii) What are anionic detergents ? Give an example .

Explanation

(i) Disinfectants : A disinfectant is used primarily to sanitise objects. If acts as an
antimicrobial that kills the microbes that cause infection. Disingectants usually come as liquids or sprays .
Example : Chlorine in the concentration of 0.2 to 0.4 ppm, in an aquenous solution, acts as a disingectan.
(ii) Enzymes and receptors are the macromoleculars that are chosen as drug targets.
(iii) Aniomic datergents : The detergents are sodium salts of sulphonated long chain alcohols
or hydrocarbone eg. sodium lauryl sulphate.
Anionic detergents are of two types :
1. Sodium alkyl sulphates : Sodium lauryl sulphate `(C_(11)H_(23)CH_(2)OSO^(-3) Na^+)` and sodium
stearyl sulphate `(C_(17)H_(35)CH_(2)OSO^(-3)Na^+)`.
2. Sodium alkyl benzenesulphonates : Sodium `4-(1-dodecy) benzenesulphonate (SDS).